PLAGRON - PH PLUS (25%) - 10LPH Plus is a pH regulator that allows you to increase the pH value of the nutrient water to the ideal level of 5. 5 6. 5. Only a nutrient solution with the correct pH value will ensure that the plant absorbs the nutrients in the correct proportions. This then has a stimulating effect on the plants metabolism, which makes the plant grow faster. Dosage and use Shake well before use. Add PH Plus in steps of 0. 5 ml per litre of water (1: 2000) and